When Unionville High School was under construction, the government decided it was a prime opportunity to initiate the program.

However, in the 2009–10 school year, the program was renamed "Arts Unionville" [14] Shortly after, the York Region District School Board removed funding for busing, thus eliminating transportation means for long-distance students attending the program.

The decision was protested by many parents and students, and after hiring a lawyer, they settled out of court to have funding for bus transportation reinstated for the rest of the 2008–2009 school year.

[15] Students living in areas not around Unionville were expected to attend arts schools in their own districts.

There are four classrooms for music situated in the east wing of the school directly adjacent to the underground link to the Markham Theatre.

With its strategic placement, it is often said amongst faculty, staff, and students that the Music department is located in its own east wing.

The Arts Unionville Music program is separated into six categories: piano, winds, strings, vocal, brass, and percussion.

[17] The Visual Arts program provides opportunities for individual creative and imaginative growth as well as development of technical skills.

For the purpose of developing the aptitudes of talented students interested in the Visual Arts, programs are offered in all four years.

This program focuses on the development of creativity, artistry, and technique needed to improve dance expression.

The test is written every year on the last Thursday of March in all public secondary schools including Unionville.

Some of the more longstanding clubs would include:[28] The YRDSB International Languages Program holds Cantonese, Greek, Japanese, and Mandarin classes for Senior Kindergarten to Grade 8 on various days of the week at Unionville High School.